更新cookie值。

[daswcszxw]

Cookie存了个这种格式的字符串。
TIT+ID+CID，TIT+ID+CID

thisCps = $(this).attr('cps');//CID
bookHis = thisTitle + "+" + thisUrl+ "+" +thisCps;
if(bookRead != null && bookRead != 'undefined'){
    for(i=0;i<readList.length;i++){//serach
        ibookInfo = readList[i].split("+");
        if(ibookInfo[0] == thisTitle && ibookInfo[1] == thisUrl && ibookInfo[2] == thisCps){//tit id cps
            return false;
        }else if(ibookInfo[0] == thisTitle && ibookInfo[1] == thisUrl && ibookInfo[2] != thisCps){//tit id
            console.log(i,ibookInfo,bookHis,bookRead);
        
            //Cookie.set("bookH5Read", bookHis + "," + bookRead);	
        }else{
            
        }
    }
}else{
    Cookie.set("bookH5Read", bookHis);
}

在TIT+ID相同的情况下，替换CID。
现在操作是每次插入一条新的数据。
也知道先吧数据读取出来，解析成一个变量，再写回去。可跳不出来了。
求指点。

[daswcszxw]

for(i=0;i<readList.length;i++){//serach
    ibookInfo = readList[i].split("+");
    if(ibookInfo[0] == thisTitle && ibookInfo[1] == thisUrl && ibookInfo[2] == thisCps){//tit id cps
        return false;
    //}else if(ibookInfo[0] == thisTitle && ibookInfo[1] == thisUrl && ibookInfo[2] != thisCps){//tit id
    }else if(readList[i].indexOf(thisTitle + "+" + thisUrl+ "+")==0){//tit id
        //console.log(i,readList[i],ibookInfo,bookHis,bookRead);
        Cookie.set("bookH5Read", bookHis);	
    }else{
        Cookie.set("bookH5Read", bookHis + "," + bookRead);   
    }
}

在数据只有一组时，TIT+ID+CID，可以正常修改CID。
在数据有多组时，修改不了对应的那组数据，会新增一组。


因为在对比第一组时，TIT+ID 是不一样的。要怎么调整下？修改IF结构？

[天际的海浪]

thisCps = $(this).attr('cps');//CID
bookHis = thisTitle + "+" + thisUrl+ "+" +thisCps;
if(bookRead != null && bookRead != 'undefined'){
    for(i=0;i<readList.length;i++){//serach
        if(readList[i]==bookHis){//tit id cps
            return false;
        }else if(readList[i].indexOf(thisTitle + "+" + thisUrl+ "+")==0){//tit id
            console.log(i,ibookInfo,bookHis,bookRead);
        
            //Cookie.set("bookH5Read", bookHis + "," + bookRead);	
        }else{
            
        }
    }
}else{
    Cookie.set("bookH5Read", bookHis);
}

[daswcszxw]

引用 3 楼 jslang 的回复:

要在循环完都没有匹配的情况下才增加

for(i=0;i<readList.length;i++){//serach
    ibookInfo = readList[i].split("+");
    if(ibookInfo[0] == thisTitle && ibookInfo[1] == thisUrl && ibookInfo[2] == thisCps){//tit id cps
        return false;
    //}else if(ibookInfo[0] == thisTitle && ibookInfo[1] == thisUrl && ibookInfo[2] != thisCps){//tit id
    }else if(readList[i].indexOf(thisTitle + "+" + thisUrl+ "+")==0){//tit id
        Cookie.set("bookH5Read", bookHis);
        break;
	}
}
if(i==readList.length){
	Cookie.set("bookH5Read", bookHis + "," + bookRead);   
}

不行，替换不了。 break前只插入bookHis，就会覆盖整个字符串，不是替换的readList[i]，导致记录多条变一条。例如三条变一条数据。 break前插入bookHis + "," + bookRead 本条记录+历史记录又变成新增。例如三条+一条，变四条。

[天际的海浪]

要在循环完都没有匹配的情况下才增加

for(i=0;i<readList.length;i++){//serach
    ibookInfo = readList[i].split("+");
    if(ibookInfo[0] == thisTitle && ibookInfo[1] == thisUrl && ibookInfo[2] == thisCps){//tit id cps
        return false;
    //}else if(ibookInfo[0] == thisTitle && ibookInfo[1] == thisUrl && ibookInfo[2] != thisCps){//tit id
    }else if(readList[i].indexOf(thisTitle + "+" + thisUrl+ "+")==0){//tit id
        Cookie.set("bookH5Read", bookHis);
        break;
	}
}
if(i==readList.length){
	Cookie.set("bookH5Read", bookHis + "," + bookRead);   
}

[斯洛文尼亚旅游]

url应该唯一吧，对比第二项就行了，而且感觉你逻辑有问题，应该在url匹配就更新了，还判断下标2干嘛 Cookie.set怎么写的，你应该是更新整个cookie吧，看你代码只更新一条记录的？而且bookRead是什么东东。。

    thisCps = $(this).attr('cps');//CID
    bookHis = thisTitle + "+" + thisUrl+ "+" +thisCps;
    if (bookRead != null && bookRead != 'undefined') {
        var find = false;
        for(i=0;i<readList.length;i++){
            ibookInfo = readList[i].split("+");
            if (ibookInfo[1] == thisUrl ) {//找到此项更新
                readList[i] = bookHis;
                find = true;
                break;
            }
        }
        if (!find) readList[readList.length] = bookHis;////////////新增

        //你应该更新整个cookie吧，cookie存储readList，而不是bookHis。。而且bookHis是什么鬼。。
        Cookie.set("bookH5Read", readList);
    }else{
        //Cookie.set("bookH5Read", bookHis);
    }

Web开发学习资料推荐
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easyui datebox设置日期范围

[daswcszxw]

for(i=0;i<readList.length;i++){//serach
				ibookInfo = readList[i].split("+");
				if(ibookInfo[0] == thisTitle && ibookInfo[1] == thisUrl && ibookInfo[2] == thisCps){//tit id cps
					return false;
				}else if(readList[i].indexOf(thisTitle + "+" + thisUrl+ "+")==0){//tit id
					readList[i] = bookHis;
					Cookie.set("bookH5Read", readList);  
					break;
				}
			}
			if(i==readList.length){
				Cookie.set("bookH5Read", bookHis + "," + bookRead);   
			}

//昨天晚上已经搞定了。
琢磨的好久，才想到这么替换当前I。
readList[i] = bookHis;

var Cookie = {
	set: function(name, value, expires, path, domain) {
		if (typeof expires == "undefined") {
			expires = new Date(new Date().getTime() + 1000 * 3600 * 24 * 365);
		}
		document.cookie = name + "=" + escape(value) + ((expires) ? "; expires=" + expires.toGMTString() : "") + ((path) ? "; path=" + path: "; path=/") + ((domain) ? ";domain=" + domain: "");
	},
	get: function(name) {
		var arr = document.cookie.match(new RegExp("(^| )" + name + "=([^;]*)(;|$)"));
		if (arr != null) {
			return unescape(arr[2]);
		}
		return null;
	},
	clear: function(name, path, domain) {
		if (this.get(name)) {
			document.cookie = name + "=" + ((path) ? "; path=" + path: "; path=/") + ((domain) ? "; domain=" + domain: "") + ";expires=Fri, 02-Jan-1970 00:00:00 GMT";
		}
	}
};
//Cookie操作。